CN106128871B - A kind of breaker overcurrent protective device - Google Patents
A kind of breaker overcurrent protective device Download PDFInfo
- Publication number
- CN106128871B CN106128871B CN201610742332.6A CN201610742332A CN106128871B CN 106128871 B CN106128871 B CN 106128871B CN 201610742332 A CN201610742332 A CN 201610742332A CN 106128871 B CN106128871 B CN 106128871B
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- CN
- China
- Prior art keywords
- breaker
- pedestal
- grating
- overcurrent
- turning piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/04—Means for indicating condition of the switching device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Breakers (AREA)
Abstract
The invention discloses a kind of breaker overcurrent protective devices, have：Connecting plate is main circuit board；Pedestal is arranged on connecting plate；Lid covers pedestal；Scale grating is fixed on the inside of lid；Direction turning piece, near middle are hinged on scale raster center；Resetting spring, first end are fixed on direction turning piece first end, on second end nonadjustable signal grating；It shows grating, is fixed in resetting spring second end；First overcurrent spring, one end are mounted on pedestal, the connection of the first end of the other end and direction turning piece, further include the axial direction positioned at axis, direction turning piece both sides convex lens and reading head, convex lens is mounted on by convex lens bearing on pedestal；Reading head reads the drift angle for showing grating and scale grating；The light source of irradiation convex lens is additionally provided in lid, further includes executing agency, reduces breaker electric energy loss and breaker volume, and improve overcurrent protection precision and reliability.
Description
Technical field
The present invention relates to electric system low-voltage circuit breaker protection systems technology fields, and in particular to a kind of breaker overcurrent is protected
Protection unit.
Background technology
Overcurrent protection mainly includes overload protection and short-circuit protection, in Low Voltage Electrical Apparatus, breaker and electrothermal relay production
Product overload protection principle is the thermal element fever in main circuit using string, and heat is transmitted to thrermostatic bimetal-plate by heat transfer,
Make its flexural deformation, circuit breaker draw bar is pushed by deformation displacement, breaker open operation is made by transmission mechanism action, so as to real
Existing overload protection.
In the implementation of the present invention, inventor has found that the prior art has at least the following problems：Due to overload protection
It is to be realized using thermal element and bimetal leaf, in normal work, thermal element is equivalent to resistance in circuit, and electric energy can be lost,
Belong to a part for energy consumption maximum in electric system, overload protection is also low with product temperature increase requirement conflicting, and to hot double
The material specification and performance requirement of sheet metal are very high.
Invention content
The technical problems to be solved by the invention are to provide a kind of reduction breaker electric energy loss and breaker volume, and carry
The breaker overcurrent protective device of high overcurrent protection precision and reliability.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of breaker overcurrent protective device,
Have：
Connecting plate is main circuit board；
Pedestal is arranged on the connecting plate；
Lid, covers the pedestal；
Scale grating is fixed on the inside of lid；
Direction turning piece, near middle are hinged on the scale raster center；
Resetting spring, first end are fixed on the direction turning piece first end, and second end is fixed on the scale grating；
It shows grating, is fixed in the resetting spring second end；
First overcurrent spring, one end are mounted on the pedestal, and the other end is connect with the first end of the direction turning piece；
The axial direction for being located at the axis, the convex lens and reading head of direction turning piece both sides are further included, the convex lens passes through convex lens
Mirror bearing is mounted on the pedestal；The reading head reads the drift angle for showing grating and scale grating；
The light source for irradiating the convex lens is additionally provided in the lid；
Executing agency is further included, the executing agency includes：Circuit board module, magnetic release and draw bar, the magnetic take off
The magnetic release mandril of button device is hinged with the draw bar first end, and the draw bar near middle is hinged on Shell of circuit breaker
On, the draw bar other end controls circuit-breaker switching on-off；The circuit board module receives direction turning piece corner information and controls institute
State magnetic release.
The second overcurrent spring is additionally provided on the pedestal.
The connection back is additionally provided with increasing magnetic patch.
Connecting line is further included, the connecting line includes connection wire and outer connecting line, and the connecting line is passed through in the lid
It is connect with the light source, provides electric energy for the light source, the outer connecting line is connect with executing agency.
A technical solution in above-mentioned technical proposal has the following advantages that or advantageous effect, passes through magnetic when circuit overcurrent
Field action cause direction turning piece generate angular displacement, displacement with main circuit current increase and changes, reduce breaker electric energy loss with
Breaker volume, and improve overcurrent protection precision and reliability.
Description of the drawings
Fig. 1 is the structure diagram of breaker overcurrent protective device provided in the embodiment of the present invention；
Fig. 2 is the structure diagram of the indicating mechanism of Fig. 1；
Fig. 3 is the schematic diagram of the grating of Fig. 1；
Label in above-mentioned figure is：1st, breaker, 2, magnetic release mandril, 3, magnetic release, 4, circuit board module, 5,
Direction turning piece, 6, scale grating, 7, resetting spring, 8, outer connecting line, 9, indication grating, 10, connecting plate, 11, pedestal, 12, axis,
13rd, the first overcurrent spring, the 14, second overcurrent spring, 15, increase magnetic patch, 16, lid, 17, draw bar, 18, convex lens bearing, 19, light
Source, 20, convex lens, 21, connection wire, 22, reading head.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Referring to Fig. 1-3, a kind of breaker overcurrent protective device has：
Connecting plate is main circuit board；
Pedestal is arranged on connecting plate；
Lid covers pedestal；
Scale grating is fixed on the inside of lid；
Direction turning piece, near middle are hinged on scale raster center；
Resetting spring, first end are fixed on direction turning piece first end, on second end nonadjustable signal grating；
It shows grating, is fixed in resetting spring second end；
First overcurrent spring, one end are mounted on pedestal, the first end connection of the other end and direction turning piece；
The axial direction for being located at axis, the convex lens and reading head of direction turning piece both sides are further included, convex lens is pacified by convex lens bearing
On pedestal；Reading head reads the drift angle for showing grating and scale grating；
The light source of irradiation convex lens is additionally provided in lid；
Executing agency is further included, executing agency includes：Circuit board module, magnetic release and draw bar, the magnetic of magnetic release
Buckle releaser mandril is hinged with draw bar first end, and draw bar near middle is hinged on Shell of circuit breaker, draw bar other end control
Circuit-breaker switching on-off processed；Circuit board module receives direction turning piece corner information and controls magnetic release.
The second overcurrent spring is additionally provided on pedestal.
Connection back is additionally provided with increasing magnetic patch.
Connecting line is further included, connecting line includes connection wire and outer connecting line, and connecting line is passed through in lid and is connect with light source, is
Light source provides electric energy, and outer connecting line is connect with executing agency.
A, B of breaker, C, (N) mutually each pole connecting plate on equipped with overcurrent protection module, module include direction turning piece, scale
Grating, connecting line, indication grating, connecting plate, pedestal, axis, overcurrent spring, overcurrent spring, increases magnetic patch, lid, convex lens at resetting spring
Mirror bearing, light source, convex lens, connecting line, reading head.It crosses flow module and plays acquisition breaker overcurrent data-signal, and pass through company
Data are transmitted to circuit board module by wiring, are handled the data of acquisition by circuit board module, if breaker occurs overcurrent and shows
As draw bar will be pushed by the mandril of magnetic release, so as to make breaker open operation.It is crossing immediately below flow module, also affixed increasing
Magnetic sheet, the purpose of the increasing magnetic sheet when main circuit current is less than 63A in order to consider, because when main circuit current is less than 63A, i.e.,
When be magnetic field around over-current state than relatively limited, it is therefore desirable to increase magnetic sheet.
Direction turning piece is fixed on the face of covering by axis, and when circuit breaker load side overcurrent, connecting plate, that is, main circuit generates overcurrent,
Magnetic field is generated around connecting plate, direction turning piece is rotated in an anti-clockwise direction around axis, and overcurrent spring and overcurrent spring are respectively and fixedly connected to base
The lug boss position of seat, the coefficient of elasticity of overcurrent spring is bigger than overcurrent spring, when main circuit overcurrent is not very big, direction turning piece gram
Overcurrent spring is taken, when main circuit current is even up to greatly short circuit current very much, direction turning piece overcomes overcurrent spring and overcurrent spring simultaneously
And backwards rotation.When electric current excludes over current fault, then direction turning piece is restored to normally under overcurrent spring and action of reset spring
The location of magnetic field direction turning piece.
Wiring board provides power supply by connecting line and connecting line to light source, and the light of diverging is become flat by light source by convex lens
Row illumination is on indication grating.Indication grating passes through axis, is fixed on direction turning piece on one side, is on one side grating, and rotation angle is with turning
It is synchronized to piece, is scale grating, is fixed in and covers together with reading head.When direction turning piece rotate, indication grating just with scale grating
Angular displacement is generated, and pass through reading head just data signal acquisition can be arrived.
Connecting line effect is that circuit board module power supply is supplied to module light source, and grating reading head data feedback is arrived
In circuit board module.With reference to the principle of grating displacement sensor, a kind of completely new breaker over-current protection method is formed, using this
Kind over-current protection method can reduce circuit breaker electric overload protection and short-circuit protection fusion in the module of a very little
Energy loss and breaker volume, and improve overcurrent protection precision and reliability.
When circuit overcurrent by magnetic fields cause direction turning piece generate angular displacement, displacement with main circuit current increase and
Change, data-signal is fed back to, and calculated, then pass through magnetic release by electronic circuit board by grating angular displacement sensor
Draw bar is pushed to make breaker open operation.Working state of circuit breaker can be set on circuit board module, i.e., setting be horizontally mounted or
Right angle setting, be mainly in view of here breaker normal work when be horizontally mounted with direction turning piece in right angle setting two states by
The influence of earth gravitational field.
After above-mentioned structure, when circuit overcurrent by magnetic fields cause direction turning piece generate angular displacement, displacement with
Main circuit current increase and change, reduce breaker electric energy loss and breaker volume, and improve overcurrent protection precision with can
By property.It can be installed in mechanical debugging process, used guard method can reduce breaker after breaker assembles
Electric energy loss and breaker volume, and improve overcurrent protection precision and reliability.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that present invention specific implementation is not by aforesaid way
Limitation, as long as employ the inventive concept and technical scheme of the present invention progress various unsubstantialities improvement or without changing
Other occasions are directly applied to by the design of the present invention and technical solution, within protection scope of the present invention.
Claims (2)
1. a kind of breaker overcurrent protective device, which is characterized in that have：
Connecting plate is main circuit board, and when the main circuit of main circuit board generates overcurrent, magnetic field can be generated around connecting plate；
Pedestal is arranged on the connecting plate；
Lid, covers the pedestal；
Scale grating is fixed on the inside of lid；
Direction turning piece, near middle are hinged on the scale raster center；
Resetting spring, first end are fixed on the direction turning piece first end, and the resetting spring second end fixes the scale light
On grid；
It shows grating, is fixed in the resetting spring second end；
First overcurrent spring, one end are mounted on the pedestal, and the other end is connect with the first end of the direction turning piece；
The axial direction for being located at axis, the convex lens and reading head of direction turning piece both sides are further included, the convex lens is pacified by convex lens bearing
On the pedestal；The reading head reads the drift angle for showing grating and scale grating；
The light source for irradiating the convex lens is additionally provided in the lid；
Executing agency is further included, the executing agency includes：Circuit board module, magnetic release and draw bar, the magnetic release
Magnetic release mandril be hinged with the draw bar first end, the draw bar near middle is hinged on Shell of circuit breaker, institute
State draw bar other end control circuit-breaker switching on-off；The circuit board module receives direction turning piece corner information and the magnetic is controlled to take off
Detain device；
Further include connecting line, the connecting line includes connection wire and outer connecting line, the connection wire be passed through in the lid with
The light source connection, provides electric energy, the outer connecting line is connect with executing agency for the light source.
2. breaker overcurrent protective device as described in claim 1, which is characterized in that the second overcurrent is additionally provided on the pedestal
Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742332.6A CN106128871B (en) | 2016-08-29 | 2016-08-29 | A kind of breaker overcurrent protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610742332.6A CN106128871B (en) | 2016-08-29 | 2016-08-29 | A kind of breaker overcurrent protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106128871A CN106128871A (en) | 2016-11-16 |
| CN106128871B true CN106128871B (en) | 2018-06-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610742332.6A Active CN106128871B (en) | 2016-08-29 | 2016-08-29 | A kind of breaker overcurrent protective device |
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| Country | Link |
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| CN (1) | CN106128871B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331230A (en) * | 2011-06-17 | 2012-01-25 | 唐臻宇 | Length or angle measuring device and circuit structure thereof |
| CN204241646U (en) * | 2014-12-01 | 2015-04-01 | 国网辽宁省电力有限公司锦州供电公司 | Circular high voltage isolating switch testing sensor |
| CN206116308U (en) * | 2016-08-29 | 2017-04-19 | 安徽中电兴发与鑫龙科技股份有限公司 | Circuit breaker overcurrent protect device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8786846B2 (en) * | 2012-07-05 | 2014-07-22 | Matvey Lvovskiy | Method for determination of head position relative to rectangular axes for observer equipped with head-mounted module |
-
2016
- 2016-08-29 CN CN201610742332.6A patent/CN106128871B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331230A (en) * | 2011-06-17 | 2012-01-25 | 唐臻宇 | Length or angle measuring device and circuit structure thereof |
| CN204241646U (en) * | 2014-12-01 | 2015-04-01 | 国网辽宁省电力有限公司锦州供电公司 | Circular high voltage isolating switch testing sensor |
| CN206116308U (en) * | 2016-08-29 | 2017-04-19 | 安徽中电兴发与鑫龙科技股份有限公司 | Circuit breaker overcurrent protect device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106128871A (en) | 2016-11-16 |
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| TR01 | Transfer of patent right |
Effective date of registration: 20191203 Address after: No. 188 Huizhou Road, Jiujiang Economic Development Zone, Wuhu City, Anhui Province, 241000 Patentee after: Anhui Xin Long SBLV Address before: 241000 Anhui Province, Wuhu City Jiuhua Jiujiang District No. 118 North Park electrical components Patentee before: ANHUI ZHONGDIAN XINGFA AND XINLONG TECHNOLOGY CO., LTD. |
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| TR01 | Transfer of patent right |